A small tool to view real-world ActivityPub objects as JSON! Enter a URL
or username from Mastodon or a similar service below, and we'll send a
request with
the right
Accept
header
to the server to view the underlying object.
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"ostatus": "http://ostatus.org#",
"atomUri": "ostatus:atomUri",
"inReplyToAtomUri": "ostatus:inReplyToAtomUri",
"conversation": "ostatus:conversation",
"sensitive": "as:sensitive",
"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"blurhash": "toot:blurhash",
"focalPoint": {
"@container": "@list",
"@id": "toot:focalPoint"
},
"Hashtag": "as:Hashtag"
}
],
"id": "https://mastodon.acm.org/users/ACM/collections/featured",
"type": "OrderedCollection",
"totalItems": 2,
"orderedItems": [
{
"id": "https://mastodon.acm.org/users/ACM/statuses/114558037394399680",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-05-23T16:15:28Z",
"url": "https://mastodon.acm.org/@ACM/114558037394399680",
"attributedTo": "https://mastodon.acm.org/users/ACM",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.acm.org/users/ACM/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.acm.org/users/ACM/statuses/114558037394399680",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.acm.org,2025-05-23:objectId=26144906:objectType=Conversation",
"content": "<p>Congratulations to Ilias Diakonikolas, recipient of the 2024 ACM Grace Murray Hopper Award! He is recognized for making contributions to the field of algorithmic robust statistics by introducing new techniques to robustly estimate high-dimensional distributions along with a surprising variety of algorithmic applications. Learn more: <a href=\"https://awards.acm.org/hopper\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">awards.acm.org/hopper</span><span class=\"invisible\"></span></a></p>",
"contentMap": {
"en": "<p>Congratulations to Ilias Diakonikolas, recipient of the 2024 ACM Grace Murray Hopper Award! He is recognized for making contributions to the field of algorithmic robust statistics by introducing new techniques to robustly estimate high-dimensional distributions along with a surprising variety of algorithmic applications. Learn more: <a href=\"https://awards.acm.org/hopper\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">awards.acm.org/hopper</span><span class=\"invisible\"></span></a></p>"
},
"attachment": [
{
"type": "Document",
"mediaType": "image/png",
"url": "https://mastodon.acm.org/system/media_attachments/files/114/558/037/286/426/053/original/e1fb147fb071ec45.png",
"name": null,
"blurhash": "UjLq-5IU.At8avxuWFRj%$tQVrj?t8R%WAog",
"width": 1080,
"height": 1080
}
],
"tag": [],
"replies": {
"id": "https://mastodon.acm.org/users/ACM/statuses/114558037394399680/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.acm.org/users/ACM/statuses/114558037394399680/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.acm.org/users/ACM/statuses/114558037394399680/replies",
"items": []
}
},
"likes": {
"id": "https://mastodon.acm.org/users/ACM/statuses/114558037394399680/likes",
"type": "Collection",
"totalItems": 4
},
"shares": {
"id": "https://mastodon.acm.org/users/ACM/statuses/114558037394399680/shares",
"type": "Collection",
"totalItems": 1
}
},
{
"id": "https://mastodon.acm.org/users/ACM/statuses/109785401724285094",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2023-01-31T19:11:27Z",
"url": "https://mastodon.acm.org/@ACM/109785401724285094",
"attributedTo": "https://mastodon.acm.org/users/ACM",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.acm.org/users/ACM/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.acm.org/users/ACM/statuses/109785401724285094",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.acm.org,2023-01-31:objectId=854985:objectType=Conversation",
"content": "<p>The Code of Conduct for the ACM <a href=\"https://mastodon.acm.org/tags/Mastodon\" class=\"mention hashtag\" rel=\"tag\">#<span>Mastodon</span></a> server is live! Check it out here: <a href=\"https://mastodon.acm.org/about\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">mastodon.acm.org/about</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.acm.org/tags/mastoadmin\" class=\"mention hashtag\" rel=\"tag\">#<span>mastoadmin</span></a> <a href=\"https://mastodon.acm.org/tags/computerscience\" class=\"mention hashtag\" rel=\"tag\">#<span>computerscience</span></a></p>",
"contentMap": {
"en": "<p>The Code of Conduct for the ACM <a href=\"https://mastodon.acm.org/tags/Mastodon\" class=\"mention hashtag\" rel=\"tag\">#<span>Mastodon</span></a> server is live! Check it out here: <a href=\"https://mastodon.acm.org/about\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">mastodon.acm.org/about</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.acm.org/tags/mastoadmin\" class=\"mention hashtag\" rel=\"tag\">#<span>mastoadmin</span></a> <a href=\"https://mastodon.acm.org/tags/computerscience\" class=\"mention hashtag\" rel=\"tag\">#<span>computerscience</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.acm.org/tags/mastodon",
"name": "#mastodon"
},
{
"type": "Hashtag",
"href": "https://mastodon.acm.org/tags/mastoadmin",
"name": "#mastoadmin"
},
{
"type": "Hashtag",
"href": "https://mastodon.acm.org/tags/computerscience",
"name": "#computerscience"
}
],
"replies": {
"id": "https://mastodon.acm.org/users/ACM/statuses/109785401724285094/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.acm.org/users/ACM/statuses/109785401724285094/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.acm.org/users/ACM/statuses/109785401724285094/replies",
"items": []
}
},
"likes": {
"id": "https://mastodon.acm.org/users/ACM/statuses/109785401724285094/likes",
"type": "Collection",
"totalItems": 39
},
"shares": {
"id": "https://mastodon.acm.org/users/ACM/statuses/109785401724285094/shares",
"type": "Collection",
"totalItems": 31
}
}
]
}